US11020538B2 - Anesthesia needle assembly and methods - Google Patents
Anesthesia needle assembly and methods Download PDFInfo
- Publication number
- US11020538B2 US11020538B2 US15/829,538 US201715829538A US11020538B2 US 11020538 B2 US11020538 B2 US 11020538B2 US 201715829538 A US201715829538 A US 201715829538A US 11020538 B2 US11020538 B2 US 11020538B2
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- needle
- bending
- opening
- trough
- injection device
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3287—Accessories for bringing the needle into the body; Automatic needle insertion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3202—Devices for protection of the needle before use, e.g. caps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3286—Needle tip design, e.g. for improved penetration
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/3278—Apparatus for destroying used needles or syringes
- A61M2005/3284—Deformaton of needle by deflection or bending
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2207/00—Methods of manufacture, assembly or production
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2207/00—Methods of manufacture, assembly or production
- A61M2207/10—Device therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/02—Bones
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/06—Head
- A61M2210/0625—Mouth
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21G—MAKING NEEDLES, PINS OR NAILS OF METAL
- B21G1/00—Making needles used for performing operations
- B21G1/08—Making needles used for performing operations of hollow needles or needles with hollow end, e.g. hypodermic needles, larding-needles
Definitions
- This disclosure relates to methods and systems for bending a medical device. More particularly, this disclosure relates to methods and systems for bending needles of fluid dispensing devices such as syringes.
- a desired injection site may be difficult to access.
- a bent needle may facilitate access to various difficult injection sites.
- FIG. 1 is a perspective view of a needle guide for bending a medical device
- FIG. 2 is another perspective view of the needle guide of FIG. 1 ;
- FIG. 3 is a side view of the needle guide of FIG. 1 ;
- FIG. 4 is an end view of the needle guide of FIG. 1 from a distal end;
- FIG. 5 is an end view of the needle guide of FIG. 1 from a proximal end
- FIG. 6 is a cross-sectional view from the side of the needle guide of FIG. 1 ;
- FIG. 7 is a cross-sectional view from the side of the needle guide of FIG. 1 assembled with a medical device
- FIG. 8 is another cross-sectional view from the side of the needle guide and the medical device of FIG. 7 ;
- FIG. 9 is another cross-sectional view from the side of the needle guide and the bent medical device of FIG. 7 ;
- FIG. 10 is a perspective view of another embodiment of a needle guide for bending a medical device
- FIG. 11 is another perspective view of the needle guide of FIG. 10 ;
- FIG. 12 is a side view of the needle guide of FIG. 10 ;
- FIG. 13 is an end view of the needle guide of FIG. 10 from a distal end
- FIG. 14 is an end view of the needle guide of FIG. 10 from a proximal end
- FIG. 15 is a cross-sectional view from the side of the needle guide of FIG. 10 ;
- FIG. 16 is a cross-sectional view from the side of the needle guide of FIG. 10 assembled with a medical device
- FIG. 17 is another cross-sectional view from the side of the needle guide and the medical device of FIG. 16 ;
- FIG. 18 is another cross-sectional view from the side of the needle guide and the bent medical device of FIG. 16 ;
- FIG. 19 is a perspective view of the needle guide of FIG. 1 with a syringe
- FIG. 20 is a perspective view of the needle guide and syringe of FIG. 19 assembled together;
- FIG. 21 is a perspective view of the assembled needle guide and syringe of FIG. 20 after a needle of the syringe has been bent;
- FIG. 22 is a perspective view of the needle guide of FIG. 10 with a syringe
- FIG. 23 is a perspective view of the needle guide and syringe of FIG. 22 assembled together.
- FIG. 24 is a perspective view of the assembled needle guide and syringe of FIG. 23 after a needle of the syringe has been bent.
- Embodiments and arrangements disclosed herein may include one or more devices for bending a medical device.
- a bending device such as a needle guide—is disposed around a needle of a fluid dispensing device (or “injection device”) and coupled to a needle hub of the fluid dispensing device.
- injection device a fluid dispensing device
- the needle Once the bending device is coupled to the needle hub or other component of the fluid dispensing device, the needle may be bent upon a surface or portion of the bending device.
- the bending device may thus facilitate bending of the needle at point offset a distance from the needle hub. This distance may prevent or minimize the likelihood of breaking a rigid coupling between the needle and the needle hub which could, in turn, render the fluid dispensing device inoperable.
- the bent needle comprises a curved bent section to prevent kinking and concentrated stress on the needle.
- a medical professional may then use the fluid dispensing device comprising the bent needle to access otherwise difficult to reach injection sites in the body.
- a dentist, oral surgeon, or the like may utilize a bent needle to target delivery of anesthetic to a specific location for more efficient delivery.
- a needle may refer to any elongate medical device that may be used for inserting into a patient.
- Exemplary needles within the scope of this disclosure include, but are not limited to, a hollow metal tube, a hollow plastic tube, a solid metal elongate tool, or a solid plastic elongate tool.
- connection to and coupled to are broad enough to refer to any suitable coupling or other form of interaction between two or more entities, including mechanical, fluidic, and thermal interaction. Two components may be coupled to each other even though they are not in direct contact with each other.
- attachment to or directly attached to refer to interaction between two or more entities which are in direct contact with each other and/or are separated from each other only by a fastener of any suitable variety (e.g., an adhesive).
- proximal and distal refer to opposite ends of a device or component.
- the proximal end refers to the end nearest to a practitioner during use
- the distal end refers to the opposite end along a longitudinal axis.
- the distal end of a needle refers to the sharpened end configured for insertion into a patient.
- the systems and methods disclosed herein may be used for interosseous injection, or injections between bone structures or for intraosseous injections, or injections within bone. Any method, device, system, or kit disclosed herein may be used interosseously or intraosseously. Further, U.S. Provisional Application No. 62/233,640, incorporated by reference above, references interosseous procedures. The disclosure of that application may be analogously applied to intraosseous procedures as well. Thus, disclosure in the underlying provisional application to interosseous methods, devices, systems, or kits may be applied to intraosseous application as well.
- FIG. 1 illustrates a bending device, needle guide 100 , which comprises a proximal end 101 , a distal end 103 , a distal-most surface 105 of the distal end 103 , a truncated surface 107 of the distal end 103 , a bending trough 109 , and an exterior surface 111 of the body member 102 of the needle guide 100 .
- the needle guide 100 may be utilized to facilitate bending of a medical device, such as a needle.
- the needle guide 100 defines a longitudinal axis extending between the proximal end 101 and the distal end 103 .
- the needle guide 100 may comprise any rigid material including, but not limited to, plastic or metal.
- the needle guide 100 comprises a material that is sanitizable with standard medical cleaning supplies. Further, the needle guide 100 may comprise one or more grip surfaces to improve a user's ability to control the needle guide 100 during procedures such as pushing or pulling on the needle guide 100 . In some of these embodiments, the one or more grip surfaces may be disposed on the exterior surface 111 of the needle guide 100 . The grip surfaces may be positioned adjacent the distal end 103 of the needle guide 100 .
- the bending trough 109 comprises a bending surface that is convexly curved with respect to at least one plane.
- the profile of the bending trough 109 viewed with respect to a plane normal to the surface of the bending trough, may comprise an arc, such as defined by a portion of a circle, an ellipse, or a parabola.
- the bending trough 109 may provide a profile or shape for bending a medical device such as a needle.
- a needle or other medical device may be plastically deformed by forcing the needle into contact with the bending trough 109 .
- a needle bent through contact with the bending trough 109 may thus partially conform to the shape of the bending trough 109 .
- the convexly curved surface may thus provide a form or guide for bending the needle, imparting a curve profile to the needle to distribute a bending stress along a length of the needle and control the position of the bend along a length of the needle. This may prevent or reduce kinking of a lumen of the needle and/or breaking of the needle at a bending region.
- the bending trough 109 may be formed as an extending concave surface, which may be configured to receive a portion of the needle or other medical device.
- the bending trough 109 comprises a longitudinal groove to restrict lateral movement of the needle during bending.
- the bending trough 109 may be positioned proximal of the distal-most surface 105 of the distal end 103 of the needle guide 100 , along the longitudinal axis, leaving a portion of the body member 102 of the needle guide 100 , interface surface 117 (not shown in FIG. 1 ), disposed above the bending trough 109 when the needle guide 100 is oriented with the bending trough 109 downward.
- FIG. 6 which is a cross-sectional side view of the needle guide 100 of FIG. 1 .
- the interface surface 117 is also shown in FIG. 8 which is a cross-sectional side view of the needle guide 100 of FIG.
- the needle guide 100 interface surface 117 may provide a bearing surface for transferring force applied by a user to the needle guide 100 to a needle (such as needle 121 ) disposed within the lumen 115 of the needle guide 100 .
- a downward force applied to the needle guide 100 relative to the orientation shown by the arrow in FIG. 6 , would displace the interface surface 117 toward the needle 121 , transferring the downward force to the needle 121 at the bend in the needle 121 .
- the direction of an exemplary downward force is shown by the arrow of FIG. 8 .
- the interface surface 117 of the needle guide 100 may have a groove or other element for holding a bent needle in place during the transfer of force described.
- the needle guide 100 may be configured to be placed over a distal end of the needle and slid proximally to an interface with a component of an injection device.
- the needle guide 100 may be independent from the injection device, or it may be an integral component of an injection device.
- the needle guide 100 may not be rigidly coupled directly to the needle adjacent the bending trough 109 .
- the needle may be fixed to a needle hub, for example by glue, but not fixed to the needle guide 100 within the lumen ( 115 of FIG. 6 ).
- the needle guide 100 may form a loose fit around the needle without coupling directly to the needle.
- An offset between rigid coupling of the needle and the location of the bending trough 109 may introduce additional tolerance for bending into the assembly, by allowing the needle to flex or displace along a distance away from the bending trough 109 . This offset may be present both in embodiments wherein the needle guide 100 is a separate component from the needle and needle hub assembly and embodiments wherein the needle guide 100 is an integral component of a needle hub.
- FIG. 2 illustrates the needle guide 100 of FIG. 1 from a perspective view of the proximal end 101 of the needle guide 100 .
- the lumen 115 is shown extending into the body of the needle guide 100 from the proximal end 101 .
- An injection device interface 113 comprising ridges for coupling with an injection device is also shown.
- the distal end 103 and the exterior surface 111 of the needle guide 100 are also indicated.
- the injection device interface 113 may be configured to couple the needle guide 100 to an injection device.
- the injection device interface 113 is configured to form a friction fit with a needle hub of an injection device.
- the injection device interface 113 may form a snap fit connection with a needle hub of the injection device.
- the injection device interface 113 may be configured in any shape to mate with an element of the injection device. In some embodiments, the injection device interface 113 prohibits rotation of the needle guide 100 around the longitudinal axis (with respect to the injection device) when coupled to an injection device.
- the lumen 115 may extend the length of the needle guide 100 and may be defined by an interior surface of the body member 102 of the needle guide 100 .
- a diameter of the lumen 115 may be slightly larger than a diameter of a needle to be bent, thus forming a loose fit around the needle.
- the lumen 115 is in communication with the bending trough 109 as shown in FIG. 1 .
- FIG. 3 is a side view of the needle guide 100 of FIG. 1 illustrating the proximal end 101 , the distal end 103 , the distal-most surface 105 , the truncated surface 107 , and the exterior surface 111 of the needle guide 100 .
- the length of the needle guide 100 may be greater than 2 millimeters.
- the length of the needle guide 100 may be greater than 3 millimeters.
- the length of the needle guide 100 may be greater than 3.5 millimeters. In other embodiments, the length of the needle guide 100 is about 4 millimeters. In some embodiments, the length of the needle guide 100 is between 3 millimeters and 5 millimeters.
- the length of the needle guide needle guide 100 is between 3.5 and 4.5 millimeters. In some embodiments, the length of the needle guide 100 may be measured from the proximal end 101 to the distal end 103 . In other embodiments, the length of the needle guide may be defined as the distance from the bending trough 109 to a coupling region 133 of a needle hub 131 as shown in FIG. 7 . The distance between the bending trough 109 and the coupling region 133 may also correspond to the magnitude of the offset between a needle hub (wherein a needle may be fixed to the needle hub) and the location on the needle wherein the needle is bent along the bending trough 109 of the needle guide 100 .
- FIG. 4 is an end view of the distal end 103 of the needle guide 100 of FIG. 1 showing the distal-most surface 105 , the truncated surface 107 , the bending trough 109 , the exterior surface 111 , and the lumen 115 .
- the exterior surface 111 may be visible from this end view because, in the shown embodiment, the distal end 103 is narrower than the proximal end 101 of FIG. 1 .
- the needle guide 100 may have a conical or frusto-conical shape.
- the needle guide 100 may have any cross-sectional shape (viewed from the longitudinal axis or an axis normal to the longitudinal axis) including, but not limited to, a triangle, a square, a rectangle, an hourglass shape, a trapezoid, a parallelogram, a circle, an ellipse, a polygon, or the like.
- the needle guide 100 may comprise one or more bulbous portions (such as the rounded portions of an hourglass shape) to provide a shape and surface for gripping the needle guide 100 .
- the bending trough 109 may have a topography to direct the position of the needle to a proper bending location when bending a needle upon the bending trough 109 . Also shown is a rounded surface where the lumen 115 intersects with the distal end 103 . In other embodiments, the needle guide 100 may not have rounded surfaces where the lumen 115 intersects the distal end 103 .
- FIG. 5 is an end view of the proximal end 101 of the needle guide 100 of FIG. 1 showing the injection device interface 113 and the lumen 115 .
- the injection device interface 113 may extend a length distally from the proximal end 101 and terminate proximal of the distal end 103 of the needle guide 100 .
- FIG. 6 is a cross-sectional view of the needle guide 100 along line 6 of FIG. 4 showing the proximal end 101 , the distal end 103 , the body member 102 , the distal-most surface 105 , the truncated surface 107 , the bending trough 109 , the exterior surface 111 , the injection device interface 113 , the lumen 115 , and the interface surface 117 .
- the bending trough may be an extended concave surface, which may be configured to receive a portion of the needle or other medical device.
- the the interface surface 117 may be disposed above the bending trough 109 when the needle guide 100 is oriented with the bending trough 109 downward.
- the interface surface 117 may provide a bearing surface for transferring force applied by a user to the needle guide 100 to a needle 121 disposed within the lumen 115 of the needle guide 100 .
- the interface surface 117 may thus be disposed directly across, or at 180° to, the bending trough 109 .
- a diameter of the lumen 115 may vary along the length of the needle guide 100 .
- the diameter of the lumen 115 is narrowest adjacent the bending trough 109 .
- the concave surface of bending trough 109 may include a proximal portion 109 A and a distal portion or end 109 B that may be angled substantially perpendicular to the proximal portion 109 A.
- FIG. 7 is a cross-sectional view of the needle guide 100 of FIG. 1 assembled with an injection device comprising a needle hub 131 , a needle coupling region 133 wherein a needle 121 is coupled to the needle hub 131 , a distal end 123 of the needle 121 , and a cap 141 .
- the injection device interface 113 may interact with the needle hub 131 to couple the needle guide 100 to the injection device.
- the injection device interface 113 may loosely couple to the injection device.
- the injection device interface 113 may couple to the injection device using one or more of a friction fit, a snap fit, a permanent weld, and an adhesive.
- the needle guide 100 may encapsulate the needle hub 131 and the proximal end 101 may contact another element of the injection device. In other embodiments, a portion of the needle hub 131 may be visible proximal to the proximal end 101 of the needle guide 100 .
- the needle 121 may be coupled to the coupling region 133 of the needle hub 131 using a rigid coupling system including, but not limited to, adhesive, melting, and/or welding.
- the needle guide 100 of FIG. 1 may be integrally formed with the needle hub 131 .
- the needle guide 100 and the needle hub 131 may be formed of a single piece of material such as plastic or metal.
- the needle 121 may be rigidly coupled to a proximal segment of the single piece of material and a distal segment may comprise the features described herein for the bending device 100 , wherein the distal segment provides a distance to offset the proximal segment from the bending trough 109 .
- FIG. 8 illustrates the assembly of FIG. 7 with the cap 141 removed and the needle 121 is bent by a user's finger 151 .
- FIG. 8 further shows a bending region 125 of the needle 121 bent upon the trough 109 of the needle guide 100 .
- the trough 109 may cause the bending region 125 to follow the curve of the trough 109 to an angle approximately normal to the longitudinal axis of the needle guide 100 .
- a user may bend the needle 121 to any desired angle from 0 degrees to 180 degrees including about 30 degrees, about 45 degrees, about 60 degrees, about 120 degrees, about 135 degrees, and about 150 degrees.
- a user's finger 151 may be used to apply a force on the needle 121 from a direction opposite the trough 109 to cause the needle 121 to bend upon the trough 109 .
- the illustration also shows that the user's finger 151 may bend the needle 121 without being placed in proximity to the distal end 123 of the needle 121 .
- a user may bend the needle 121 by advancing the cap 141 distally and exerting a downward force on the cap 141 such that an interior surface of the cap 141 transfers the downward force onto the needle 121 , thus bending the needle 121 without direct contact between the user and the needle 121 .
- a user may press the needle 121 against another surface to provide a normal force to bend the needle 121 upon the bending trough 109 .
- FIG. 9 illustrates the assembly of FIG. 7 wherein the needle 121 is bent about 180 degrees.
- the needle guide 100 comprises a rounded surface connecting the bending trough 109 to the exterior surface 111 such that the needle 121 may be bent around a smooth, rounded surface.
- the illustrated configuration may be achieved by replacing the cap 141 after bending the needle 121 , as shown in FIG. 8 , for example. This may be beneficial to a user because, unlike an injection device in a configuration in which a needle 121 is straight, the user may be able to replace the cap 141 without advancing the cap 141 toward the distal end 123 of the needle 121 , thus decreasing the likelihood of the user being punctured by the needle 121 .
- the user may replace the cap 141 between a plurality of injections using the needle 121 .
- the illustrated assembly of FIG. 9 may also be configured prior to delivery of the injection device to the user.
- the needle 121 may comprise a material that is shape set and configured to adjust to a desired bent angle when a compression pressure of the cap 141 is relieved by removing the cap 141 .
- the desired angle may be any angle between 180 degrees and 0 degrees. In some embodiments, the desired angle is about 90 degrees. In other embodiments, the desired angle is about 45 degrees. In further embodiments, the desired angle is one of about 45 degrees and about 135 degrees.
- FIG. 10 illustrates a needle guide 200 comprising a proximal end 201 , a distal end 203 , a protrusion having a top surface 204 and at least one side surface 206 , an extension 208 extending from a surface of the distal end 203 , a bending trough 209 , an exterior surface 211 of a proximal segment of the body member 202 of the needle guide 200 , an exterior surface 212 of a distal segment of the body member 202 of the needle guide 200 , and a lumen 215 .
- the needle guide 200 may be utilized to facilitate bending of a medical device, such as a needle.
- the needle guide defines a longitudinal axis extending between the proximal end 201 and the distal end 203 . As shown, the lumen 215 may be parallel to the longitudinal axis. Unless differences are specifically identified, elements of the needle guide 200 may have the same characteristics as similar elements described for needle guide 100 . As shown in the illustration, the protrusion may be positioned opposite the bending trough 209 from the lumen 215 .
- the top surface 204 may provide a surface upon which a user may push to insert the needle into a patient.
- the at least one side surface 206 may be used by a user to pull the needle guide 200 and retract the needle from the patient.
- the protrusion when viewed from the top, may be rectangular as shown, or, in other embodiments, the protrusion may be any other shape including, but not limited to, circular, triangular, trapezoidal, star-shaped, or hourglass-shaped. As shown, a distal surface of the protrusion may be coplanar with the distal end 203 . In other embodiments, the distal surface of the protrusion may be displaced proximally from the distal end 203 . In still other embodiments, the protrusion may extend distal of the trough 209 along the longitudinal axis. In some embodiments, the needle guide 200 may have two or more protrusions.
- FIG. 11 depicts the needle guide 200 of FIG. 10 from a perspective view of the proximal end 101 of the needle guide 200 .
- the lumen 215 is shown extending into the body 202 of the needle guide 200 from the proximal end 101 .
- An injection device interface 213 is also shown.
- the proximal end 201 , the protrusion having the top surface 204 and the at least one side surface 206 , the exterior surface 211 of the proximal segment of the body member 202 of the needle guide 200 , the exterior surface 212 of the distal segment of the body member 202 of the needle guide 200 , and the lumen 215 are also indicated.
- the injection device interface 213 may be configured to couple the needle guide 200 to an injection device.
- the injection device interface 213 may form a friction fit with a needle hub of the injection device.
- the injection device interface 213 is configured to form a snap fit connection with a needle hub of the injection device.
- the injection device interface 213 may be configured in any shape to mate with an element of the injection device.
- the injection device interface 213 restricts rotation of the needle guide 200 around the longitudinal axis (with respect to the injection device) when coupled to an injection device.
- the lumen 215 may extend the length of the needle guide 200 and may be defined by an interior surface of the body member 202 of the needle guide 200 .
- a diameter of the lumen 215 may be slightly larger than a diameter of a needle to be bent, thus forming a loose fit around the needle.
- the lumen 215 is in communication with the bending trough 209 as shown in FIG. 10 .
- FIG. 12 is a side view of the needle guide 200 of FIG. 10 illustrating the proximal end 201 , the distal end 203 , the protrusion comprising the top surface 204 and the at least one side surface 206 , the extension 208 extending from the distal end 203 , the exterior surface 211 of the proximal segment of the body member 202 , and the exterior surface 212 of the distal segment of the body member 202 .
- the length of the needle guide 200 may be any of the sizes or ranges of sizes disclosed for the length of the needle guide 100 above.
- FIG. 13 is an end view of the distal end 203 of the needle guide 200 of FIG. 10 showing the protrusion comprising the top surface 204 and the at least one side surface 206 , the extension 208 , the bending trough 209 , the exterior surface 211 of the proximal segment of the body of the needle guide 200 , and the lumen 215 .
- the exterior surface 211 of the proximal segment of the body of the needle guide 200 may be seen from the end view because, in the shown embodiment, the distal segment of the body member 202 of the needle guide 200 is narrower than the proximal segment of the body member 202 of the needle guide 200 .
- the bending trough 109 may have a topography to direct the position of the needle to a proper bending location when bending a needle upon the bending trough 209 .
- FIG. 14 is an end view of the proximal end 201 of the needle guide 200 of FIG. 10 showing the injection device interface 213 and the lumen 215 .
- the injection device interface 213 may extend a length distally from the proximal end 201 and terminate proximal of the distal end 203 of the needle guide 200 .
- the injection device interface 213 comprises a frusto-conical shape and a cylindrical shape.
- the injection device interface 213 may comprise a combination of any shapes, including, but not limited to, any of the shapes described in this disclosure.
- FIG. 15 is a cross-sectional view of the needle guide 200 along line 15 of FIG. 13 showing the proximal end 201 , the distal end 203 , the protrusion comprising the top surface 204 and the at least one side surface 206 , the extension 208 , the exterior surface 211 of the proximal segment of the body 202 of the needle guide 200 , the exterior surface 212 of the distal segment of the body 202 of the needle guide 200 , the injection device interface 213 , and the lumen 215 .
- a diameter of the lumen 215 may vary along the length of the needle guide 200 . In some embodiments, the diameter of the lumen 215 is narrowest adjacent the bending trough 209 .
- FIG. 16 is a cross-sectional view of the needle guide 200 of FIG. 10 assembled with an injection device comprising a needle hub 231 , a needle coupling region 233 wherein a needle 221 may be coupled to the needle hub 231 , a distal end 223 of the needle 221 , and a cap 241 .
- the injection device interface 213 may interact to couple the needle guide 200 to the injection device.
- the injection device interface 213 may loosely couple to the injection device.
- the injection device interface 213 may couple to the injection device using one or more of a friction fit, a snap fit, a permanent weld, and an adhesive.
- the needle guide 200 may encapsulate the needle hub 231 and the proximal end 201 may contact another element of the injection device. In other embodiments, a portion of the needle hub 231 may be visible proximal to the proximal end 201 of the needle guide 200 .
- the needle 221 may be coupled to the coupling region 233 of the needle hub 231 using a rigid coupling system including, but not limited to, adhesive, melting, and/or welding.
- the needle guide 200 of may be integrally formed with the needle hub 231 .
- the needle guide 200 and the needle hub 231 may be formed of a single piece of material such as plastic or metal.
- the needle 221 may be rigidly coupled to a proximal segment of the single piece of material and a distal segment may comprise the features described herein for the bending device 200 , wherein the distal segment provides a distance to offset the proximal segment from the bending trough 209 .
- FIG. 17 illustrates the assembly of FIG. 16 with the cap 241 removed and the needle 221 is bent by a user's finger 251 .
- FIG. 17 further shows a bending region 225 bent upon the trough 209 of the needle guide 200 .
- the trough 209 may cause the bending region 225 to follow the curve of the trough 209 to an angle approximately normal to the longitudinal axis of the needle guide 200 .
- a user may bend the needle 221 to any desired angle including about 30 degrees, about 45 degrees, about 60 degrees, about 120 degrees, about 135 degrees, and about 150 degrees.
- a user's finger 251 may be used to apply a force on the needle 221 from a direction opposite the trough 209 to cause the needle 221 to bend upon the trough 209 .
- the illustration also shows that the user's finger 251 may bend the needle 221 without being placed in proximity to the distal end 223 of the needle 221 .
- a user may bend the needle 221 by advancing the cap 241 distally and exerting a downward force on the cap 241 such that an interior surface of the cap 141 transfers the downward force onto the needle 221 , thus bending the needle 221 without direct contact between the user and the needle 221 .
- a user may press the needle 221 against another surface to provide a normal force to bend the needle 221 upon the bending trough 209 .
- FIG. 18 illustrates the assembly of FIG. 16 wherein the needle 221 is bent more than 90 degrees.
- the needle guide 200 comprises a rounded surface connecting the bending trough 209 to the exterior surface 212 of the distal segment of the body of the needle guide 200 such that the needle 221 is bent around a smooth, rounded surface.
- the extension 208 and the rounded surface together form a parabolic curve.
- the extension 208 and the rounded surface form one of a semi-circle or an arc of an ellipse.
- the illustrated configuration may be achieved by replacing the cap 241 after bending the needle 221 as shown in FIG. 17 .
- the illustrated assembly of FIG. 18 may also be configured prior to delivery of the injection device to the user.
- the needle 221 may comprise a material that is shape set and configured to adjust to a desired bent angle when a compression pressure of the cap 141 is relieved by removing the cap 241 .
- the desired angle may be any angle between 180 degrees and 0 degrees. In some embodiments, the desired angle is about 30 degrees, about 60 degrees, about 90 degrees, about 120 degrees, about 150 degrees, about 45 degrees, or about 135 degrees.
- FIG. 19 illustrates the needle guide 100 of FIG. 1 distal of the distal end 123 of a needle 121 comprised in an injection device.
- the injection device may comprise a needle hub 131 .
- the needle hub 131 may be integrally formed with the needle guide 100 .
- the needle guide 100 may be oriented such that the proximal end 101 of the needle guide 100 is adjacent the distal end 123 of the needle 121 .
- FIG. 20 illustrates the needle guide 100 and the injection device of FIG. 19 in an assembled configuration.
- the needle guide 100 is advanced along the needle 121 proximally until the proximal end 101 is adjacent the needle hub 131 of the injection device, and the distal end 123 of the needle 121 extends through the lumen (not shown) and the distal end 123 of the needle 121 extends distally from the distal-most surface 105 of the distal end 103 of the needle guide 100 .
- the needle guide 100 is coupled to the needle hub 131 using any of the methods described herein.
- FIG. 21 illustrates the assembly of FIG. 20 with the needle 121 bent upon the bending trough 109 of the needle guide 100 .
- the needle 121 may be ready for insertion into a patient.
- the needle 121 may be bent to any desired angle between 0 and 180 degrees.
- FIG. 22 illustrates the needle guide 200 of FIG. 10 distal of the distal end 223 of a needle 221 comprised in an injection device.
- the injection device may also comprise a needle hub 231 .
- the needle hub 131 may be integrally formed with the needle guide 200 .
- the needle guide 200 may be oriented such that the proximal end of 201 of the needle guide 200 is adjacent the distal end 223 of the needle 221 .
- FIG. 23 illustrates the needle guide 200 and the injection device of FIG. 22 in an assembled configuration.
- the needle guide 200 is advanced along the needle 221 proximally until the proximal end 201 is adjacent the needle hub 231 of the injection device, and the distal end 223 of the needle 221 extends through the lumen (not shown) and the distal end 223 of the needle 221 extends distally from the extension 208 .
- the needle guide 200 is coupled to the needle hub 231 using any of the methods described herein.
- FIG. 24 illustrates the needle guide 200 and the injection device of FIG. 23 the needle 221 bent upon the bending trough 209 of the needle guide 200 .
- the needle 221 may be ready for insertion into a patient.
- the needle 221 may be bent to any desired angle between 0 and 180 degrees.
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Mechanical Engineering (AREA)
Abstract
Description
Claims (13)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/829,538 US11020538B2 (en) | 2015-09-28 | 2017-12-01 | Anesthesia needle assembly and methods |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201562233640P | 2015-09-28 | 2015-09-28 | |
US201662289567P | 2016-02-01 | 2016-02-01 | |
PCT/US2016/053901 WO2017058755A1 (en) | 2015-09-28 | 2016-09-27 | Systems and methods for bending a needle |
US15/829,538 US11020538B2 (en) | 2015-09-28 | 2017-12-01 | Anesthesia needle assembly and methods |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/US2016/053901 Continuation WO2017058755A1 (en) | 2015-09-28 | 2016-09-27 | Systems and methods for bending a needle |
Publications (2)
Publication Number | Publication Date |
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US20180126093A1 US20180126093A1 (en) | 2018-05-10 |
US11020538B2 true US11020538B2 (en) | 2021-06-01 |
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Application Number | Title | Priority Date | Filing Date |
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US15/764,029 Abandoned US20180280629A1 (en) | 2015-09-28 | 2016-09-27 | Systems and methods for bending a needle |
US15/829,538 Active US11020538B2 (en) | 2015-09-28 | 2017-12-01 | Anesthesia needle assembly and methods |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
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US15/764,029 Abandoned US20180280629A1 (en) | 2015-09-28 | 2016-09-27 | Systems and methods for bending a needle |
Country Status (2)
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US (2) | US20180280629A1 (en) |
WO (1) | WO2017058755A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10625028B2 (en) * | 2017-06-28 | 2020-04-21 | Retractable Technologies, Inc. | Safety syringe with needle redirection device |
US10772659B2 (en) | 2018-04-03 | 2020-09-15 | Dr. Barney Paradigms, Lc | Device and method for intraosseous dental administration |
EP4213919A1 (en) * | 2020-09-21 | 2023-07-26 | Greenberg, Jared | Needle bending device |
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US907210A (en) * | 1908-04-25 | 1908-12-22 | John R Williams | Pipe-bender. |
US3884230A (en) | 1973-09-27 | 1975-05-20 | Goldwyn L Wulff | Flexible needle and guard device for a hypodermic syringe |
US4188950A (en) * | 1978-10-30 | 1980-02-19 | Wardlaw Stephen C | Disposable syringe |
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US4269056A (en) * | 1979-05-29 | 1981-05-26 | Kozinski Richard R | Conduit bender construction |
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US20070149924A1 (en) * | 2005-10-13 | 2007-06-28 | Becton, Dickinson And Company | Disposable needle and hub assembly |
US20070185460A1 (en) | 2003-08-28 | 2007-08-09 | Lionel Vedrine | Intradermal injection device |
US20080058717A1 (en) * | 2006-09-04 | 2008-03-06 | Spector David M | Oral cavity liquid delivery system including pre-angled needle guidance assembly and method for using the same |
US20100198152A1 (en) * | 2007-08-01 | 2010-08-05 | Suddeutsche Feinmechanik Gmbh | Cannula device having pivotable needle guard |
US20110295218A1 (en) * | 2008-11-11 | 2011-12-01 | Novo Nordisk A/S | Bended injection needle |
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-
2016
- 2016-09-27 WO PCT/US2016/053901 patent/WO2017058755A1/en active Application Filing
- 2016-09-27 US US15/764,029 patent/US20180280629A1/en not_active Abandoned
-
2017
- 2017-12-01 US US15/829,538 patent/US11020538B2/en active Active
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US907210A (en) * | 1908-04-25 | 1908-12-22 | John R Williams | Pipe-bender. |
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US4188950A (en) * | 1978-10-30 | 1980-02-19 | Wardlaw Stephen C | Disposable syringe |
US4269056A (en) * | 1979-05-29 | 1981-05-26 | Kozinski Richard R | Conduit bender construction |
US4266544A (en) * | 1979-11-09 | 1981-05-12 | Wardlaw Stephen C | Hypodermic syringe |
US4634428A (en) * | 1985-08-15 | 1987-01-06 | Cuu Cwo Liang | Cover for a disposable syringe |
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US5437640A (en) * | 1994-01-31 | 1995-08-01 | Schwab; Louis | Apparatus and method for inserting hypodermic, tuberculin and other needles and for administering Mantoux tuberculin tests |
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US20070185460A1 (en) | 2003-08-28 | 2007-08-09 | Lionel Vedrine | Intradermal injection device |
US20070016146A1 (en) | 2004-09-13 | 2007-01-18 | Lms Co., Ltd. | Safeguard cap, injection needle with safeguard cap, and medical device with safeguard cap |
US20070149924A1 (en) * | 2005-10-13 | 2007-06-28 | Becton, Dickinson And Company | Disposable needle and hub assembly |
US20080058717A1 (en) * | 2006-09-04 | 2008-03-06 | Spector David M | Oral cavity liquid delivery system including pre-angled needle guidance assembly and method for using the same |
US20100198152A1 (en) * | 2007-08-01 | 2010-08-05 | Suddeutsche Feinmechanik Gmbh | Cannula device having pivotable needle guard |
US20110295218A1 (en) * | 2008-11-11 | 2011-12-01 | Novo Nordisk A/S | Bended injection needle |
US20110319831A1 (en) * | 2008-12-12 | 2011-12-29 | Sanofi-Aventis Deutschland Gmbh | Protection assembly |
US20130150680A1 (en) * | 2011-12-12 | 2013-06-13 | Smiths Medical Asd, Inc. | Variable Length Portal Access Device |
US9457155B2 (en) * | 2012-06-29 | 2016-10-04 | Laponia Innovatio Ab | Protective cover for disposable injection needles |
Non-Patent Citations (1)
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Also Published As
Publication number | Publication date |
---|---|
WO2017058755A1 (en) | 2017-04-06 |
US20180126093A1 (en) | 2018-05-10 |
US20180280629A1 (en) | 2018-10-04 |
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